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Alcohol-based fuel formed by utilizing waste alcohol azeotrope and preparation method of alcohol-based fuel

An alcohol-based fuel and an azeotrope technology, applied in the field of alcohol-based fuel and its preparation, can solve the problems of complex azeotropic distillation process and high energy consumption, reduce the generation of waste water and other by-products, reduce the cost of raw materials, The effect of reducing energy consumption

Inactive Publication Date: 2019-07-05
JIANGSU YINGTIAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of recovering mixed alcohol waste solvent, some azeotrope by-products will be produced. Azeotropic rectification is required to separate azeotrope. Azeotropic rectification must add an entrainer. Most of the industry uses pure benzene as an entrainer. However, the toxicity of benzene reaches a high level, and the process of azeotropic distillation is complex, energy-intensive, and produces a large amount of waste water and by-products

Method used

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  • Alcohol-based fuel formed by utilizing waste alcohol azeotrope and preparation method of alcohol-based fuel
  • Alcohol-based fuel formed by utilizing waste alcohol azeotrope and preparation method of alcohol-based fuel

Examples

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Effect test

Embodiment 1

[0022] The preparation method of the alcohol-based fuel that utilizes waste alcohol azeotrope to form comprises the following steps:

[0023] Take by weight the ternary azeotrope of methanol, isopropanol-water azeotrope, ethyl acetate-ethanol-water, 60 parts of methanol, 10 parts of isopropanol-water azeotrope and 5 parts of Ethyl acetate-ethanol-water ternary azeotrope; the mass content of isopropanol in the isopropanol-water azeotrope is 87.9%, ethyl acetate in the ethyl acetate-ethanol-water ternary azeotrope: ethanol : water=83:9:8 (mass ratio). Add it into the reaction kettle one by one, turn on the stirring device of the reaction kettle, control the stirring speed to 300 rpm, and then add 1 part of additives; stir until the materials are evenly mixed, and the product is obtained. Methanol was recovered methanol at a concentration of 98%.

Embodiment 2

[0025] The preparation method of the alcohol-based fuel that utilizes waste alcohol azeotrope to form comprises the following steps:

[0026] Weigh the ternary azeotrope of methanol, isopropanol-water azeotrope, ethyl acetate-ethanol-water according to parts by mass, including 80 parts of methanol, 20 parts of isopropanol-water azeotrope and 10 parts The ethyl acetate-ethanol-water ternary azeotrope; The mass content of isopropanol in the isopropanol-water azeotrope is 87.9%, ethyl acetate in the ethyl acetate-ethanol-water ternary azeotrope: Ethanol: water = 83:9:8 (mass ratio). Add it into the reaction kettle one by one, turn on the stirring device of the reaction kettle, control the stirring speed to 400 rpm, and then add 3 parts of additives; stir until the materials are evenly mixed, and the product is obtained. Methanol was recovered methanol at a concentration of 98%.

Embodiment 3

[0028] The preparation method of the alcohol-based fuel that utilizes waste alcohol azeotrope to form comprises the following steps:

[0029] Weigh methanol, isopropanol-water azeotrope, ethyl acetate-ethanol-water ternary azeotrope in parts by mass, including 70 parts of methanol, 15 parts of isopropanol-water azeotrope and 8 parts The ethyl acetate-ethanol-water ternary azeotrope; The mass content of isopropanol in the isopropanol-water azeotrope is 87.9%, ethyl acetate in the ethyl acetate-ethanol-water ternary azeotrope: Ethanol: water = 83:9:8 (mass ratio). Add it into the reaction kettle one by one, turn on the stirring device of the reaction kettle, control the stirring speed to 350 rpm, and then add 2 parts of additives; stir until the materials are evenly mixed, and the product is obtained. Methanol was recovered methanol at a concentration of 98%.

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Abstract

The invention relates to the technical field of fuel synthesis, and in particular relates to an alcohol-based fuel formed by utilizing a waste alcohol azeotrope. The alcohol-based fuel comprises the following components: 60-80 parts of methanol, 10-20 parts of an isopropanol-water azeotrope and 5-10 parts of an ethyl acetate-ethanol-water ternary azeotrope. The alcohol-based fuel provided by the invention has high stability and no delamination under the temperature condition of -20 DEG C, and all the indexes meet the requirements of GB 16663-1996 (Alcohol based liquid fuel); and in the field of solvent recovery, under the condition that an azeotrope production amount does not achieve a scale, the method of preparing the alcohol-based fuel by directly using the azeotrope and the methanol asraw materials has more economic advantages, and can reduce energy consumption and reduce unnecessary purification; and the alcohol-based fuel has a high calorific value and high utilization of thermal efficiency, thereby achieving the purpose of resource reuse.

Description

technical field [0001] The invention relates to the technical field of fuel synthesis, in particular to an alcohol-based fuel composed of waste alcohol azeotrope and a preparation method thereof. Background technique [0002] Alcohol-based fuel is a green energy source—compared with coal, coal tar, heavy oil, diesel, and gasoline, alcohol-based fuel burns the most completely, has the highest heat conversion efficiency, and emits mainly water and carbon dioxide. It is the cleanest and most efficient fuel in the future. Environmentally friendly and the fuel with the most potential for development. [0003] Alcohol-based fuels are fuels formulated mainly from alcohols (such as methanol, ethanol, butanol, etc.). It exists in liquid or solid form. It is also a kind of biomass energy. Like nuclear energy, solar energy, wind energy, and hydraulic energy, it is an environmentally friendly and clean energy that governments are vigorously promoting. Facing the depletion of petroche...

Claims

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Application Information

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IPC IPC(8): C10L1/02C10L1/10C10L1/12C10L1/16
CPCC10L1/02C10L1/10C10L1/125C10L1/1616C10L10/06C10L2230/088C10L2300/20
Inventor 杨水清庄可滕海俊陆文庆徐康陆文宏戴增锐
Owner JIANGSU YINGTIAN CHEM
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